I've looked across Things I'm Reading and Playing, and the only two I've found are closed. One being moved to a new topic, and the second being closed mid 2017 (“Sorry - this topic is requiring too much moderator intervention for off-topic and hostile posts.”). I was wondering if a new thread was ever created?

You would have to look at a directory or look it up on a site

With some searching, I found a Steven Universe topic in that category that's been open since 2017. It appears to be a continuation of the second topic you mentioned.